Daniel o hara



(No Model.)

' c. v. WOERD, Deod.

D. OHARA, Administrator. STEM WINDING AND SETTING MECHANISM.

N0. 430,099. Patented June 10, 1890.

* UNITED STATES PATENT OFFICE.

CHARLES V. \VOERD, OF \VALTHAM, MASSACHUSETTS; DANIEL OHARAADMINISTRATOR OF SAID CHARLES V. \VOERD, DECEASED.

STEM WINDING AND SETTING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 430,099, dated June 10,1890.

Application filed February 13, 1888- Serial No. 263,888. (No model.)

To all whom it may concern.-

Be it known that 1, CHARLES V. WVOERD, of Valtham, in the county ofMiddlesex and State of lllassachusettshave invented certain new anduseful Improvements in Stem \Vindin g and Setting Watches, of which thefollowing is a full, clear, and exact description.

This invention more particularly relates to the stem-winding andhand-setting mechanism of the Letters Patent of the United States issuedto me, dated May 11, 1886, No. 341,786, although, as will be obvious, itis applicable to other forms of such mechanism.

This invention consists in the adaptation, as hereinafter described, ofthe gear-wheel, of the train of gear-wheels carried by the swingingyoke, which meshes the gear-wheel of the mainspring-arbor for movementto and fro on the yoke, and thereby into and out of mesh with thegear-wheel of the mainspringarbor, and in the application, ashereinafter described, to said to-and-fro-moving gear of a spring whichis held on the pillar-plate of the watch ino'vement, and otherwise is arranged to press said gear in a direction toward the wheel of themainspring-arbor, all as pointed out in the claim.

In the drawings forming part of this specification, Figurel is a planview of the pillarplate of a watch-movement and of the mechanism of thisinvention. Fig. 2 is a section in detail on line 2 2, Fig. 1.

In the drawings, A is the pillar-plate.

B is the hand-arbor.

O is the gear-wheel of the mainspring-arbor.

D is the winding-stem having a bevel-pinion (not shown) to mesh a bevelcrown-wheel (not shown) concentric and turning as one with agear-wheelEof a train of gear-wheels, otherwise composed of gear-wheelsF and G, meshing the gear-wheel E on its opposite sides, and ofgear-wheels K L M N, connecting gearwheel G with the hand-arbor of thewatchmovement, and H is a swinging yoke carrying the gear-wheels E, F,G, and K, and J is a spring pressing upon the swinging yoke to confinethe gear-wheel F in mesh with the gear-wheel O of the mainspring-arbor.

So far as described, and all otherwise, ex-

cept as to the gear-wheel F, and hereinafter particularly explained, thesame as ordinary and as well known, and more particularly as illustratedand described in the schedule annexed to the aforesaid Letters Patent ofthe United States, to which reference is hereby had for a more perfectunderstanding thereof, a is the arbor of the gear-wheel E, and b is thebearing for the arbor a, and, as shown, is located on the swinging yokeH. The arbor a is round, and, as shown, it is held on the gear F. Thebearing 7) is elongated, or, in other words, it is in the form of a slotand of a width equal or substantially equal to and of a length greaterthan the diameter of the arbor a, and such as to allow a movement of thearbor along its length toward and away from the axis of rotation of thegear-wheel C of the mainspring-arbor, suiiiciently in theone case topositively mesh the gear-wheel F with gear-wheel C, (the arbor thenpreferably being at rest against the end d of its bearing b,which istoward gear-wl1eel 0,) and in the other case to practically placegear-wheel F out of mesh with gear-wheel O.

f is a bent spring at one end secured to pillar-plate, and at its freeend arranged to press simply with su fficientforce upon the periphery ofthe laterally-moving gear-wheel F to hold said gear-wheel againstaccidental lateral play on the yoke in a direction away from the axis ofthe mainspring-arbor, while offering no practical resistance to the freemovement of the gear-wheel E on the yoke in the direction to place itout of mesh with the gear-wheel O of the mainspring'arbor, as willhereinafter appear.

\Vith the gear-train in connection with the mainspring-arbor, then, ifthe winding-stem is turned in the direction to wind the mainspring, thegear-wheel F of said train then has positive mesh with the gear-wheel Oof the mainspring-arbor, and if it is turned in the other and oppositedirection said gear-wheel F, because of said elongated bearingb for its5 arbor a, then moves on the yoke H out of its mesh with the wheel 0 ofinainspring-arbor.

In the escape of wheel F from its mesh with the wheel C ofmainspring-arbor, when the winding-stem is turned in the oppositedirection to that for winding the niainspring, all as has beendescribed, the swinging yoke H remains stationary, obviously animportant advantage, and, further, all undue and unnecessary wear andstrain on the teeth of wheels 0 F and on the yoke H and its spring J areobviated.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

In a stem-winding and hand-setting mechanism comprising a train ofgearing connecting the winding-stem with both the hand and mainspringarbors and in part carried by a swinging yoke H, and arranged normallyto be in connection with the mainspring-arbor and out of connection withthe hand-arbor and to be placed out of connection with mainspring-arborand into connection with handarbor by suitably swinging said yoketherefor, the eombination,witl1 the arbor a of one wheel F of saidtrain, and which arbor is round, of an elongated bearing 2) thereforlocated on said yoke H, and in width equal or substantially equal, andin length greater than the diameter of the arbor and located for thearbor to be free to move along its length in one direction toward and inthe other direction away from and thus to place its gear-wheel into andout of connection with the mainspring-arbor, and a spring f, suitablyheld and arranged to press said gearwheel F in a direction toward theend (Z of the slotted bearing 1) for its arbor, substantially asdescribed, for the purposes specified.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

CIIAS. V. WOERD. \Vitnesses:

ALBERT W. Bnowiv, MARION E. BROWN.

